Electoral bond regulation: authorised banks may issue bonds and contributions excluded from donation disclosure under new finance measures. The Bill narrows trustee investment authority to instruments' express authorisations or securities specified by the Central Government, defines and authorises issuance of electoral bond by scheduled banks and excludes such contributions from political party donation disclosure, revises postal rates interim operation, expands Oil Industry Development Fund uses, repeals the Research and Development Cess Act, restructures the SEBI Appellate Tribunal, establishes a Payments Regulatory Board, and makes retrospective tax and income declaration Scheme modifications.